/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.designPatterns.mediator;

/**
 *
 * @author minga
 */
public class DollarsConverter {
    Mediator mediator ;
   public static final float DOLLAR_UNIT = 1.0f ;
   public static final float EURO_UNIT = 0.7f ;
   public static final float KRONA_UNIT = 8.0f ;
   public DollarsConverter ( Mediator mediator ) 
   {
    this.mediator = mediator ;
    mediator.registerDollarConverter(this);
   }
   private float convertEurosToDollars(float euros)
   {
       float dollars = euros * ( DOLLAR_UNIT / EURO_UNIT ) ;
       System.out.println ( "Converting " + euros + " euros to " + dollars + " dollars " ) ;
       return dollars;
   }
   private float convertKronorToDollars ( float kronor ) 
   {
    float dollars = kronor * ( DOLLAR_UNIT/KRONA_UNIT ) ;
    System.out.println ( "Conver t ing " + kronor + " kronor to " + dollars + " d ollars " ) ;
    return dollars ;
   }
   public float convertCurrencyToDollars ( float amount , String unitOfCurrency ) 
   {
       if("krona".equalsIgnoreCase( unitOfCurrency ) ) 
       {
        return convertKronorToDollars ( amount ) ;
       }
      else {
         return convertEurosToDollars(amount) ;
      }
   }
}